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/*========================== begin_copyright_notice ============================
Copyright (C) 2019-2021 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ===========================*/
#pragma once
#include "Compiler/CodeGenContextWrapper.hpp"
#include "common/LLVMWarningsPush.hpp"
#include <llvm/Pass.h>
#include <llvm/IR/InstVisitor.h>
#include "common/LLVMWarningsPop.hpp"
namespace IGC
{
class UnreachableHandling : public llvm::FunctionPass, public llvm::InstVisitor<UnreachableHandling>
{
public:
static char ID;
UnreachableHandling();
~UnreachableHandling() {}
virtual llvm::StringRef getPassName() const override
{
return "UnreachableHandling";
}
virtual bool runOnFunction(llvm::Function& F) override;
virtual void getAnalysisUsage(llvm::AnalysisUsage& AU) const override
{
}
void visitUnreachableInst(llvm::UnreachableInst& I);
private:
bool m_changed = false;
std::vector<llvm::UnreachableInst*> m_instsToReplace;
void replaceUnreachable(llvm::UnreachableInst* I);
};
} // namespace IGC
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